System Operation: RKE
The RKE system uses an Integrated Keyhead Transmitter (IKT). The Integrated Keyhead Transmitter (IKT) incorporates both the PATS and the RKE transmitter functions in a single device.
In addition to the Integrated Keyhead Transmitter (IKT), conventional RKE transmitters (key fobs) can be programmed to the vehicle. The RKE transmitters can be used to:
- unlock the doors (configurable).
- lock all the doors.
- release the liftgate latch.
- arm/disarm the perimeter alarm (if equipped).
- activate/deactivate the panic alarm.
- provide a visual confirmation when the unlock button is pressed (a long flash of the turn signals).
- provide an audible confirmation when the lock button is pressed twice within 3 seconds with all the doors closed (sounds the horn once).
- provide an audible confirmation when the lock button is pressed twice within 3 seconds and any door is ajar or a door is not locked (sounds the horn twice).
The RKE transmitters have a normal operating range of 20 m (65.62 ft).
The RKE feature is controlled by the BCM. When a button is pressed on a RKE transmitter, the Transmitter Identification Code (TIC) and the RKE command are received by the internal BCM antenna. If the BCM detects a valid programmed RKE transmitter, the BCM carries out the command by activating the power door locks, releasing the liftgate latch or activating the horn or turn signals as required.
RKE Transmitter Lock
The RKE feature requests all of the doors locked when the lock button is pressed. On any press of the lock button with all doors closed, the doors lock and the turn signals flash once. If the hood, the liftgate or any door is ajar, no flash occurs. As soon as all the openings are closed, the turn signals flash.
If 2 presses of the lock button are received within 3 seconds, the horn chirps once and the turn signals flash to indicate the hood, the liftgate and all of the doors are closed and locked. If the hood, the liftgate or any door is ajar or does not lock when the second lock request is received within 3 seconds of the first, the RKE transmitter feature chirps the horn twice without flashing the turn signals to indicate it locked all of the doors but the hood, the liftgate or a door is ajar or did not lock. When the ignition is on, the turn signal flashes and horn chirp confirmations do not occur.
RKE Transmitter Unlock (without cargo protect)
The RKE feature provides a staged (if enabled) process for unlocking the doors. Upon receipt of the first request for unlocking the doors, the RKE control feature unlocks only the front driver and passenger doors and provides a long flash of the turn signals. If another unlock request is received within 3 seconds of the first, all the doors are unlocked. This feature can be disabled so all the doors unlock on the first press of the unlock button.
RKE Transmitter Unlock (with cargo protect)
The RKE feature provides a staged (if enabled) process for unlocking the doors. Upon receipt for unlocking the doors, the RKE control feature provides a long flash of the turn signals and unlocks specific doors based on configuration. The configuration can only be changed using a diagnostic scan tool (Module Programming > Programmable Parameter > Power Door Locks).
The RKE transmitter unlock configuration are as follows:
| RKE Transmitter Button | Configuration Setting | First Press | Second Press Within 3 Seconds |
|---|---|---|---|
| General Unlock Setting | |||
| Unlock button | Default | Unlock the front driver, front passenger and the sliding door(s) | Unlock all the doors |
| Unlock button | Unlock Cabin | Unlock the front driver and front passenger doors | Unlock all the doors |
| Unlock button | Unlock Cabin and Sliding Doors | Unlock the front driver, front passenger and the sliding door(s) | Unlock all the doors |
| Unlock button | Unlock Cabin and Rear Door | Unlock the front driver, front passenger and rear cargo doors | Unlock all the doors |
| Cargo Unlock Setting (vehicles with rear cargo doors) | |||
| Luggage compartment button | Default | Unlock the rear cargo doors | Unlock all the doors |
| Luggage compartment button | Unlock Sliding Door and Rear Door | Unlock the sliding door(s) | Unlock all the doors |
| Luggage compartment button | Unlock Sliding Door | Unlock the rear cargo doors | Unlock all the doors |
| Luggage compartment button | Unlock Rear Door | Unlock the sliding and rear cargo doors | Unlock all the doors |
| Cargo Unlock Setting (vehicles with a liftgate) | |||
| Luggage compartment button | Default | Allow the liftgate latch to release if the liftgate release button on the liftgate is pressed within 45 seconds | Release the liftgate latch and unlock all the doors |
| Luggage compartment button | Unlock Sliding Door and Rear Door | Unlock the sliding door(s) and allow the liftgate latch to releases if the liftgate release button on the liftgate is pressed within 45 seconds | Release the liftgate latch and unlock all the doors |
| Luggage compartment button | Unlock Sliding Door | Unlock the sliding door(s) | Release the liftgate latch and unlock all the doors |
| Luggage compartment button | Unlock Rear Door | No action (liftgate latch releases if the liftgate release button on the liftgate is pressed within 45 seconds) | Release the liftgate latch and unlock all the doors |
RKE Transmitter Liftgate Release
The RKE transmitter feature provides a liftgate release function. The liftgate release button must be pressed twice within 3 seconds for the liftgate latch to release.
Panic Alarm
The panic alarm feature provides audible and visual alarms which are evident from the exterior of the vehicle. The panic alarm feature requests that the turn signals flash and the horn sounds until deactivation. The flashing of the outputs occurs simultaneously.
The panic alarm can only be activated when the ignition is off. This feature is disabled at all other times. Deactivation of an active panic alarm is accomplished when:
- a second press of the RKE transmitter panic button is detected.
- the ignition is switched out of off.
- a period of 2 minutes and 45 seconds has elapsed since the initial activation.
The panic alarm cannot be deactivated during the first 5 seconds of activation to avoid unintentional deactivation.